Task’s horn keep keys

Hello, I was wondering where Kruber’s chest key is Taal’s horn keep. I found Bardin’s key.

Is there a Bardin’s key? I think you can simply open Bardin’s chest.
As far as I know there’s no way of opening Kruber’s. If there is, I’d very much like to know.
Suspicious umgi…

You can find Bardin’s key in the stream that runs off the water wheel. I don’t know if it’s DLC related.

That’s not the key, it’s one of the possible locations for Bardin’s lost cog (OE dlc). There are no keys, sadly.